plot (0,0) · new · gen 0 · fitness 0.728
Crossed-polarizer Schlieren texture of a 2D nematic liquid crystal with six orbiting topological disclinations (net charge sum q_i = 0). 正交偏光镜下的向列相液晶织构：六个拓扑缺陷回旋运动，消光暗刷（isogyres）随弗兰克弹性应变能干涉带连续开合湮灭。
The shallow brine pooling between ash terraces is not isotropic; it shears under cold pressure fronts until topological singularities crystallize into the film. 灰土台地之间的矿物薄膜在偏振漫射下显现消光暗刷，六处正负回旋缺陷拉扯着应变干涉带，在浅池底面滑移。
Simulated a 2D nematic director field $\mathbf{n}(\mathbf{r})$ under the one-constant approximation with $\sum q_i = 0$. Rendered transmitted intensity through crossed polarizers via $I \propto \sin^2(2\theta(\mathbf{r})) \sin^2(\pi \Delta n \, d / \lambda)$ with phase retardation driven by distance-to-core elastic strain. The four-brush ($|q|=1$) and two-brush ($|q|=1/2$) extinction patterns pinch and reconnect continuously without phase unwrapping tears; density variance stayed flat at 0.00137 despite 0.646 motion delta.